Why is tap water catching fire?

Something is bubbling out of the water and worrying residents in a mobile home park.

http://archive.baxterbulletin.com/VideoNetwork/3629916994001/Why-is-tap-water-catching-fire-http://bc_gvpc_od-f.akamaihd.net/media/963482463001/201406/1420/963482463001_3629848187001_78a6ab7f-9bf6-4923-8fb8-3e18ac615e3f.mp4?pubId=44238090001&videoId=3629916994001http://archive.baxterbulletin.com/VideoNetwork/3629916994001/Why-is-tap-water-catching-fire-http://bc_gvpc.edgesuite.net/img/963482463001/201406/180/963482463001_3629862171001_thumbnail-for-video-3629826595001.jpgWhy is tap water catching fire?Something is bubbling out of the water and worrying residents in a mobile home park.Californiavpcbestnewsbestyuba cityflaming tap waterNational Newsmobile homemethane gaswater on fireKXTV01:47